Fix release_time query to match python hub.

[moodyjon]

Fixes #40

Primary purpose is to adjust the query to match Python claim search:
https://github.com/lbryio/hub/blob/eb87474b480f77cd2849156136101f642202fed3/hub/common.py#L603

Also contains some changes to GetProdDB to avoid panic when DB is not found. Can be unbundled if desired.

Still struggling to run tests locally (MacOS) to prove the fix is sufficient to make test_setting_stream_fields pass.

[moodyjon]

I successfully ran the testcase (test_setting_stream_fields) in both LEGACY and non-LEGACY modes.

(lbry-venv-3.9) Mac-mini lbry-sdk % env ENABLE_LEGACY_SEARCH=1 python -m unittest -vv -k test_setting_stream_fields tests/integration/claims/test_claim_commands.py
test_setting_stream_fields (tests.integration.claims.test_claim_commands.StreamCommands) ... 2022-07-29 12:39:02,959 - hub.env - WARNING - lowered maximum sessions from 1,000 to 0 because your open file limit is 256
2022-07-29 12:39:04,669 - asyncio - WARNING - Executing <Task pending name='Task-1' coro=<CommandTestCase.asyncSetUp() running at /Users/swdev1/lbry-sdk/lbry/testcase.py:407> wait_for=<Future pending cb=[_chain_future.<locals>._call_check_cancel() at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/futures.py:384, <TaskWakeupMethWrapper object at 0x109ce2dc0>()] created at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:429> cb=[_run_until_complete_cb() at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:184] created at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:626> took 1.730 seconds
2022-07-29 12:39:09,256 - elasticsearch - WARNING - GET http://localhost:9200/_template/1fabcf2cbeb746a0af0390480b0524d3claims [status:404 request:0.020s]
/Users/swdev1/hub/hub/herald/session.py:595: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait([
/Users/swdev1/lbry-sdk/lbry/wallet/ledger.py:332: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait([
/Users/swdev1/lbry-sdk/lbry/wallet/network.py:317: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait(
/Users/swdev1/lbry-sdk/lbry/wallet/network.py:343: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait(
/Users/swdev1/lbry-sdk/lbry/wallet/ledger.py:469: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait([
/opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/events.py:80: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  self._context.run(self._callback, *self._args)
/Users/swdev1/lbry-sdk/lbry/extras/daemon/storage.py:796: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait(update_file_callbacks)
ok

----------------------------------------------------------------------
Ran 1 test in 46.841s

OK

(lbry-venv-3.9) Mac-mini lbry-sdk % env ENABLE_LEGACY_SEARCH=0 python -m unittest -vv -k test_setting_stream_fields tests/integration/claims/test_claim_commands.py
test_setting_stream_fields (tests.integration.claims.test_claim_commands.StreamCommands) ... 2022-07-29 12:39:59,761 - hub.env - WARNING - lowered maximum sessions from 1,000 to 0 because your open file limit is 256
2022-07-29 12:40:01,528 - asyncio - WARNING - Executing <Task pending name='Task-1' coro=<CommandTestCase.asyncSetUp() running at /Users/swdev1/lbry-sdk/lbry/testcase.py:407> wait_for=<Future pending cb=[_chain_future.<locals>._call_check_cancel() at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/futures.py:384, <TaskWakeupMethWrapper object at 0x106a7ec70>()] created at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:429> cb=[_run_until_complete_cb() at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:184] created at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:626> took 1.787 seconds
2022-07-29 12:40:06,052 - elasticsearch - WARNING - GET http://localhost:9200/_template/4379ce36e0bc4643b63f7570f313b947claims [status:404 request:0.011s]
/Users/swdev1/hub/hub/herald/session.py:595: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait([
/Users/swdev1/lbry-sdk/lbry/wallet/ledger.py:332: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait([
/Users/swdev1/lbry-sdk/lbry/wallet/network.py:317: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait(
/Users/swdev1/lbry-sdk/lbry/wallet/network.py:343: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait(
/Users/swdev1/lbry-sdk/lbry/wallet/ledger.py:469: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait([
/opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/events.py:80: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  self._context.run(self._callback, *self._args)
/Users/swdev1/lbry-sdk/lbry/extras/daemon/storage.py:796: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
  await asyncio.wait(update_file_callbacks)
2022-07-29 12:40:36,984 - asyncio - WARNING - Executing <Task pending name='Task-2865' coro=<Ledger.stop() running at /Users/swdev1/lbry-sdk/lbry/wallet/ledger.py:366> wait_for=<Future pending cb=[_chain_future.<locals>._call_check_cancel() at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/futures.py:384, <TaskWakeupMethWrapper object at 0x106d15610>()] created at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/base_events.py:429> cb=[_gather.<locals>._done_callback() at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/tasks.py:767] created at /opt/homebrew/Cellar/[email protected]/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/asyncio/tasks.py:829> took 0.744 seconds
ok

----------------------------------------------------------------------
Ran 1 test in 48.693s

OK